1 //
2 // Copyright (C) 2013 The Android Open Source Project
3 //
4 // Licensed under the Apache License, Version 2.0 (the "License");
5 // you may not use this file except in compliance with the License.
6 // You may obtain a copy of the License at
7 //
8 //      http://www.apache.org/licenses/LICENSE-2.0
9 //
10 // Unless required by applicable law or agreed to in writing, software
11 // distributed under the License is distributed on an "AS IS" BASIS,
12 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 // See the License for the specific language governing permissions and
14 // limitations under the License.
15 //
16 
17 #ifndef UPDATE_ENGINE_COMMON_HWID_OVERRIDE_H_
18 #define UPDATE_ENGINE_COMMON_HWID_OVERRIDE_H_
19 
20 #include <map>
21 #include <string>
22 
23 #include <base/files/file_path.h>
24 #include <base/macros.h>
25 
26 namespace chromeos_update_engine {
27 
28 // Class that allows HWID to be read from <root>/etc/lsb-release.
29 class HwidOverride {
30  public:
31   HwidOverride();
32   ~HwidOverride();
33 
34   // Read HWID from an /etc/lsb-release file under given root.
35   // An empty string is returned if there is any error.
36   static std::string Read(const base::FilePath& root);
37 
38   static const char kHwidOverrideKey[];
39 
40  private:
41   DISALLOW_COPY_AND_ASSIGN(HwidOverride);
42 };
43 
44 }  // namespace chromeos_update_engine
45 
46 #endif  // UPDATE_ENGINE_COMMON_HWID_OVERRIDE_H_
47